////////////////////////////////////////////////////////////////
//
//     http://www.planetquantum.com/Solve/Level1/Den13/Page4.txt
//
////////////////////////////////////////////////////////////////

Generator:
(C (^ _E 2) (^ 3 1/2) 6 7 4)

Problem:
(= (cdot #[[7389 560 9893 650 2272 3042 7460]
           [5750 781 3180 3155 7055 1847 3240]
           [8712 7822 5225 7379 6079 577 6338]
           [4312 4850 7912 1794 7737 5316 1265]
           [4788 6612 3884 6036 9278 1273 3744]
           [7839 2213 3980 7777 4900 1228 9560]]
         #[[x_1] [x_2] [x_3] [x_4] [x_5] [x_6] [x_7]])
   #[[1732] [508] [756] [8877] [2935] [2744]])

Solution:
(= #[[x_1] [x_2] [x_3] [x_4] [x_5] [x_6] [x_7]]
   #[[288036897234715023959]
     [914396639244523472715]
     [-1411385107015868530085]
     [-1570945094880267443072]
     [196154987059316871594]
     [994366348821491408759]
     [1189417407509674792449]])